Well don't keep me in suspense....educate me a little! What is the reason, oh wise one? :P
Because there are two distincly different sexes. A 110 lb woman is not a danger to force herself upon ANY 17 yo boy. There is also a difference in the damage caused in such a relationship versus a male teacher female student.
I could go on and on. The gals in the Prison though will miss having this little thing hanging around though.